The use of prolinged pH recording in the diagnosis of gastro-esophageal reflux.
D000704:Analysis of Variance; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D006863:Hydrogen-Ion Concentration; D013997:Time Factors